450061678187 has 4 divisors (see below), whose sum is σ = 490976376216. Its totient is φ = 409146980160.

The previous prime is 450061678169. The next prime is 450061678207. The reversal of 450061678187 is 781876160054.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 450061678187 - 2⁶ = 450061678123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450061678147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20457348998 + ... + 20457349019.

It is an arithmetic number, because the mean of its divisors is an integer number (122744094054).

Almost surely, 2^450061678187 is an apocalyptic number.

450061678187 is a deficient number, since it is larger than the sum of its proper divisors (40914698029).

450061678187 is a wasteful number, since it uses less digits than its factorization.

450061678187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40914698028.

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 450061678187 in words is "four hundred fifty billion, sixty-one million, six hundred seventy-eight thousand, one hundred eighty-seven".